A student performs an experiment on photoelectric effect, using two materials A and B. A plot of Vstop vs ν is given in Fig. 11.2.
(i) Which material A or B has a higher work function?
(ii) Given the electric charge of an electron = 1.6 × 10–19 C, find the value of h obtained from the experiment for both A and B.
Comment on whether it is consistent with Einstein’s theory: